83 Electrical bulb & socket parts are listed for the 2021 Honda Civic, in 14 part types, covering all 3 engine options (1.5L L4 Turbocharged, 2.0L L4 and 2.0L L4 Turbocharged). Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2021 Honda Civic, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination. 39 parts of the 83 listed are Headlamp Bulb (23 parts), Back Up / Reverse Lamp Bulb (8 parts) and Brake Light Bulb (8 parts). The other 11 part types cover the remaining 44 parts.
The 2021 Honda Civic was sold with 3 engines. 74 parts fit every engine; the other 9 are engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2021 Honda Civic electrical bulb & socket parts are SYLVANIA (40 parts), WAGNER (20 parts) and HELLA (12 parts), plus 4 more brands. Quality grades include Standard Replacement, Extra Bright and Extended Life.
16 parts on this 2021 Honda Civic page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including SYLVANIA 921LL (Back Up / Reverse Lamp Bulb) and SYLVANIA 7440LL (Brake Light Bulb). Click any part number to see every vehicle that part fits.
Back Up / Reverse Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2021 Civic engines | 921LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.2d | View on Amazon |
| HELLA Fits: all 2021 Civic engines | 921LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentLong Life | View on Amazon |
| WAGNER Fits: all 2021 Civic engines | 921LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeWedge Base | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Civic engines | 921ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2021 Civic engines | 921WLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDWhite | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: all 2021 Civic engines | 921 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| SYLVANIA Fits: all 2021 Civic engines | 921 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.2dWattage: 18.00 W | View on Amazon |
| WAGNER Fits: all 2021 Civic engines | 921 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Bulb Type: T-5 Bulb 5/8 (16mm) DiameterVoltage: 12.800 Volts (Direct Current) | View on Amazon |
This table covers the bulbs in the reverse lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
8 Back Up / Reverse Lamp Bulb parts are listed for the 2021 Honda Civic, from SYLVANIA, WAGNER and HELLA. SYLVANIA 921LL carries the "Popular" badge. All of them fit every engine offered in the 2021 Civic.
The Extended Life section lists 3 options from SYLVANIA, HELLA and WAGNER — grouped under the catalog's "Extended Life" designation — the notes column spells out what sets them apart. SYLVANIA 921LL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section lists 1 option from SYLVANIA — grouped under the catalog's "Extra Bright (improved visibility, but shorter life)" designation — the notes column spells out what sets them apart. SYLVANIA 921ST is listed in this group.
In the LED (instant-on, long life, energy-saving) grade, WAGNER supplies 1 part: grouped under the catalog's "LED (instant-on, long life, energy-saving)" designation — the notes column spells out what sets them apart. A representative part number is WAGNER 921WLED.
The Standard Replacement section lists 3 options from HELLA, SYLVANIA and WAGNER — built to original-equipment specification. HELLA 921 is listed in this group.
Listed part numbers: SYLVANIA 921LL, plus the other parts above.
Brake Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2021 Civic engines | 7440LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W3X16D | View on Amazon |
| WAGNER Fits: all 2021 Civic engines | 7440LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeSingle Contact Wedge Base | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Civic engines | 7440ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2021 Civic engines | 7440RLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Ultinon LEDRed | View on Amazon |
| SYLVANIA Fits: all 2021 Civic engines | 7440RSL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED | View on Amazon |
| SYLVANIA Fits: all 2021 Civic engines | 7440SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Popular Fits: all 2021 Civic engines | 7440 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Single Contact Wedge Base21.000 Watt | View on Amazon |
| SYLVANIA Fits: all 2021 Civic engines | 7440 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W3X16DWattage: 25.00 W | View on Amazon |
This table covers the bulbs in the stop lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
8 Brake Light Bulb parts are listed for the 2021 Honda Civic, from SYLVANIA, WAGNER and PHILIPS. SYLVANIA 7440LL carries the "Popular" badge. All of them fit every engine offered in the 2021 Civic.
The Extended Life section: 2 options from SYLVANIA and WAGNER. SYLVANIA 7440LL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section: 1 option from SYLVANIA. SYLVANIA 7440ST is listed in this group.
LED (instant-on, long life, energy-saving): 3 parts, from SYLVANIA and PHILIPS. A representative part number is PHILIPS 7440RLED.
The Standard Replacement section: 2 options from WAGNER and SYLVANIA. WAGNER 7440 is listed in this group.
This group includes SYLVANIA 7440LL and SYLVANIA 7440ST and the remaining parts above.
Brake Light Bulb - High Mount
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 1.5L L4 Turbocharged, 2.0L L4 | 7440LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W3X16D | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 1.5L L4 Turbocharged, 2.0L L4 | 7440ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 1.5L L4 Turbocharged, 2.0L L4 | 7440SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 1.5L L4 Turbocharged, 2.0L L4 | 7440 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W3X16DWattage: 25.00 W | View on Amazon |
This table covers the bulbs in the high-mount stop lamp. Typical signs include a clunk on takeoff, a vibration at idle, or a separated rubber insert. Support the powertrain before unbolting a mount, and torque the fasteners in the notes.
SYLVANIA supplies the 4 Brake Light Bulb - High Mount parts for the 2021 Honda Civic.
The Extended Life section: 1 option from SYLVANIA. SYLVANIA 7440LL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section: 1 option from SYLVANIA. SYLVANIA 7440ST is listed in this group.
LED (instant-on, long life, energy-saving): 1 part, from SYLVANIA. A representative part number is SYLVANIA 7440SL.
The Standard Replacement section: 1 option from SYLVANIA. SYLVANIA 7440 is listed in this group.
Listed part numbers: SYLVANIA 7440LL, SYLVANIA 7440ST and SYLVANIA 7440SL, plus the other parts above.
Dome Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2021 Civic engines | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
This table covers the bulbs in the dome lamp. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
One part is listed for the 2021 Honda Civic — HELLA 2825.
Fog / Driving Lamp Bulb
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Civic engines | H8LEDSP | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Popular Fits: all 2021 Civic engines | 1235H8 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front | View on Amazon |
| HELLA Fits: all 2021 Civic engines | H8 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HalogenSocket Type Bulb: PGJ19-1 | View on Amazon |
| PHILIPS Fits: all 2021 Civic engines | H8 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| SYLVANIA Fits: all 2021 Civic engines | H8 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: PGJ19-1Wattage: 35.00 W | View on Amazon |
This table covers the bulbs in the fog and driving lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
5 Fog / Driving Lamp Bulb parts for the 2021 Honda Civic come from 4 brands — SYLVANIA, WAGNER, HELLA and 1 other brand. The "Popular" part is WAGNER 1235H8. Every part fits all 3 engine options (1.5L L4 Turbocharged, 2.0L L4 and 2.0L L4 Turbocharged).
The LED (instant-on, long life, energy-saving) section: 1 option from SYLVANIA. SYLVANIA H8LEDSP is listed in this group.
Standard Replacement: 4 parts, from WAGNER, HELLA, PHILIPS and 1 other brand. A representative part number is WAGNER 1235H8.
Part numbers include WAGNER 1235H8, SYLVANIA H8LEDSP and HELLA H8, among others listed above.
Headlamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2021 Civic engines | H11LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long Life | View on Amazon |
| SYLVANIA Fits: all 2021 Civic engines | 9005LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long Life | View on Amazon |
| WAGNER Fits: all 2021 Civic engines | 1255H11LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long Life | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Civic engines | 9005XV | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Xtra VisionColor Temperature: 3200 KV | View on Amazon |
| SYLVANIA Fits: all 2021 Civic engines | H11XV | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Xtra VisionColor Temperature: 3200 KV | View on Amazon |
| SYLVANIA Fits: all 2021 Civic engines | 9005SU | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Silver Star UltraColor Temperature: 4100 KV | View on Amazon |
| SYLVANIA Fits: all 2021 Civic engines | H11SU | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Silver Star UltraColor Temperature: 4100 KV | View on Amazon |
| SYLVANIA Fits: all 2021 Civic engines | 9005ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Silver StarColor Temperature: 4000 KV | View on Amazon |
| SYLVANIA Fits: all 2021 Civic engines | H11ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Color Temperature: 4000 KVSilver Star | View on Amazon |
| SYLVANIA Fits: all 2021 Civic engines | 9005SZG | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Silver Star zXe GOLDColor Temperature: 4200 KV | View on Amazon |
| SYLVANIA Fits: all 2021 Civic engines | H11SZGP | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Silver Star zXe GOLDBase Type: PGJ19 | View on Amazon |
| WAGNER Fits: all 2021 Civic engines | 9005TVX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HID Look | View on Amazon |
| WAGNER Fits: all 2021 Civic engines | 9005BLX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long Life80% More Light | View on Amazon |
| WAGNER Fits: all 2021 Civic engines | H11BLX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BritelitePGJ19-2 Base | View on Amazon |
| WAGNER Fits: all 2021 Civic engines | H11TVX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Truview Plus1.733 Base | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Civic engines | 9005SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: all 2021 Civic engines | 9005 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HalogenSocket Type Bulb: P20D | View on Amazon |
| SYLVANIA Popular Fits: all 2021 Civic engines | 9005 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: P20D | View on Amazon |
| SYLVANIA Popular Fits: all 2021 Civic engines | H11 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: PGJ19-2 | View on Amazon |
| WAGNER Popular Fits: all 2021 Civic engines | 1255H11 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Bulb Color: Clear | View on Amazon |
| HELLA Fits: all 2021 Civic engines | H11 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HalogenSocket Type Bulb: PGJ19-2 or Socket Type Bulb: PGJY19-2 | View on Amazon |
| WAGNER Fits: all 2021 Civic engines | 9005 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Voltage: 12.800 Volts (Direct Current) | View on Amazon |
| WAGNER Fits: all 2021 Civic engines | 9005L | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long Life | View on Amazon |
This table covers the bulbs that light the headlamps. Typical signs include a dark lamp, a flicker over bumps, or a bulb that keeps failing on one side. Avoid touching a halogen capsule. Repeated failure in one socket is usually the socket or ground, not the bulb.
23 Headlamp Bulb parts for the 2021 Honda Civic come from 3 brands — SYLVANIA, WAGNER and HELLA. The "Popular" part is SYLVANIA H11LL. Every part fits all 3 engine options (1.5L L4 Turbocharged, 2.0L L4 and 2.0L L4 Turbocharged).
Extended Life: 3 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA H11LL.
Extra Bright (improved visibility, but shorter life): 12 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA 9005XV.
The LED (instant-on, long life, energy-saving) section: 1 option from SYLVANIA. SYLVANIA 9005SL is listed in this group.
Standard Replacement: 7 parts, from WAGNER, HELLA and SYLVANIA. A representative part number is HELLA 9005.
Headlamp Socket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: all 2021 Civic engines | HP3835 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HandypackConnector Shape: Oval | View on Amazon |
| STANDARD MOTOR PRODUCTS Popular Fits: all 2021 Civic engines | S553 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Connector Shape: OvalContact Terminal Material: Metal | View on Amazon |
| ACDELCO Fits: all 2021 Civic engines | LS255 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| ACDELCO Fits: all 2021 Civic engines | PT2298 | 🇺🇸 US 🇨🇦 CA | GoldHeight (In): 1.5 in | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2021 Civic engines | HP3970 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Handypack | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2021 Civic engines | S524 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Weather Resistant: YES | View on Amazon |
| WALKER PRODUCTS Fits: all 2021 Civic engines | 2701125 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | High Beam | View on Amazon |
This table covers the sockets that hold a headlamp bulb in the housing. Typical signs include a flicker over bumps, melted plastic, or a bulb that will not stay seated. Dielectric grease on the contacts slows corrosion. Do not force a bulb into a heat-damaged socket.
7 Headlamp Socket parts for the 2021 Honda Civic come from 3 brands — STANDARD MOTOR PRODUCTS, ACDELCO and WALKER PRODUCTS. The "Popular" part is STANDARD MOTOR PRODUCTS HP3835. Every part fits all 3 engine options (1.5L L4 Turbocharged, 2.0L L4 and 2.0L L4 Turbocharged).
This group includes STANDARD MOTOR PRODUCTS HP3835, STANDARD MOTOR PRODUCTS S553 and ACDELCO LS255 and the remaining parts above.
LED Bulb Adapter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2021 Civic engines | CB900590069012 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDFor 9005 / 9006 / 9012 Bulb | View on Amazon |
| WAGNER Fits: all 2021 Civic engines | CBH8H11H16 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | For H8 / H11 / H16 Bulb | View on Amazon |
This table covers the LED Bulb adapters.
2 LED Bulb Adapter parts for the 2021 Honda Civic come from WAGNER. Every part fits all 3 engine options (1.5L L4 Turbocharged, 2.0L L4 and 2.0L L4 Turbocharged).
This group includes WAGNER CB900590069012 and WAGNER CBH8H11H16.
License Plate Lamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2021 Civic engines | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
This table covers the bulbs that light the license plate. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
One part is listed for the 2021 Honda Civic — HELLA 2825.
Map / Reading Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 1.5L L4 Turbocharged, 2.0L L4 | 2825LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.5d | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 1.5L L4 Turbocharged, 2.0L L4 | 2825ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BlueSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 1.5L L4 Turbocharged, 2.0L L4 | 2825SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDCool White | View on Amazon |
| SYLVANIA Fits: 2.0L L4 Turbocharged | 175SL | 🇺🇸 US 🇨🇦 CA | LED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: all 2021 Civic engines | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| SYLVANIA Fits: 1.5L L4 Turbocharged, 2.0L L4 | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.5dWattage: 5.00 W | View on Amazon |
This table covers the bulbs in the map / reading lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
6 Map / Reading Light Bulb parts are listed for the 2021 Honda Civic, from SYLVANIA and HELLA. HELLA 2825 carries the "Popular" badge. 1 part fits every engine; the other 5 are engine-specific.
The Extended Life section: 1 option from SYLVANIA. SYLVANIA 2825LL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section: 1 option from SYLVANIA. SYLVANIA 2825ST is listed in this group.
LED (instant-on, long life, energy-saving): 2 parts, from SYLVANIA. A representative part number is SYLVANIA 2825SL.
The Standard Replacement section: 2 options from HELLA and SYLVANIA. HELLA 2825 is listed in this group.
Part numbers include HELLA 2825, SYLVANIA 2825LL and SYLVANIA 2825ST, among others listed above.
Side Marker Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Civic engines | 2821LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.5d | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2021 Civic engines | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| PHILIPS Fits: all 2021 Civic engines | 12256 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front | View on Amazon |
| SYLVANIA Fits: all 2021 Civic engines | 2821 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front | View on Amazon |
This table covers the bulbs in the side-marker lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
4 Side Marker Light Bulb parts are listed for the 2021 Honda Civic, from SYLVANIA, HELLA and PHILIPS. All of them fit every engine offered in the 2021 Civic.
The Extended Life section: 1 option from SYLVANIA. SYLVANIA 2821LL is listed in this group.
The Standard Replacement section: 3 options from HELLA, PHILIPS and SYLVANIA. HELLA 2825 is listed in this group.
This group includes SYLVANIA 2821LL, HELLA 2825 and PHILIPS 12256 and the remaining parts above.
Tail Lamp Bulb
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2021 Civic engines | 7440RLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Ultinon LEDRed | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2021 Civic engines | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
This table covers the bulbs in the tail lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
2 Tail Lamp Bulb parts for the 2021 Honda Civic come from 2 brands — PHILIPS and HELLA. Every part fits all 3 engine options (1.5L L4 Turbocharged, 2.0L L4 and 2.0L L4 Turbocharged).
The LED (instant-on, long life, energy-saving) section: 1 option from PHILIPS. PHILIPS 7440RLED is listed in this group.
Standard Replacement: 1 part, from HELLA. A representative part number is HELLA 2825.
This group includes PHILIPS 7440RLED and HELLA 2825.
Trunk / Cargo Area Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Civic engines | 2825LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.5d | View on Amazon |
| WAGNER Fits: all 2021 Civic engines | 168LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeWedge Base | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Civic engines | 2825ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BlueSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Civic engines | 2825SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDCool White | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: all 2021 Civic engines | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| WAGNER Popular Fits: all 2021 Civic engines | 168 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Wedge Base4.900 Watt | View on Amazon |
| SYLVANIA Fits: all 2021 Civic engines | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.5dWattage: 5.00 W | View on Amazon |
This table covers the bulbs in the trunk or cargo-area lamp. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
7 Trunk / Cargo Area Light Bulb parts for the 2021 Honda Civic come from 3 brands — SYLVANIA, WAGNER and HELLA. The "Popular" part is HELLA 2825. Every part fits all 3 engine options (1.5L L4 Turbocharged, 2.0L L4 and 2.0L L4 Turbocharged).
Extended Life: 2 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA 2825LL.
Extra Bright (improved visibility, but shorter life): 1 part, from SYLVANIA. A representative part number is SYLVANIA 2825ST.
The LED (instant-on, long life, energy-saving) section: 1 option from SYLVANIA. SYLVANIA 2825SL is listed in this group.
Standard Replacement: 3 parts, from HELLA, WAGNER and SYLVANIA. A representative part number is HELLA 2825.
Part numbers include HELLA 2825, SYLVANIA 2825LL and WAGNER 168LL, among others listed above.
Turn Signal Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Civic engines | 7440ALL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | AmberBase Type: W3X16D | View on Amazon |
| WAGNER Fits: all 2021 Civic engines | 7444NALL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeNatural Amber | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: all 2021 Civic engines | 7440NA | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentNatural Amber | View on Amazon |
| SYLVANIA Fits: all 2021 Civic engines | 7440A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Amber | View on Amazon |
| WAGNER Fits: all 2021 Civic engines | 7444NA | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Natural Amber | View on Amazon |
This table covers the bulbs in the turn-signal lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
5 Turn Signal Lamp Bulb parts are listed for the 2021 Honda Civic, from SYLVANIA, WAGNER and HELLA. HELLA 7440NA carries the "Popular" badge. All of them fit every engine offered in the 2021 Civic.
The Extended Life section: 2 options from SYLVANIA and WAGNER. SYLVANIA 7440ALL is listed in this group.
The Standard Replacement section: 3 options from HELLA, SYLVANIA and WAGNER. HELLA 7440NA is listed in this group.
Part numbers include HELLA 7440NA, SYLVANIA 7440ALL and WAGNER 7444NALL, among others listed above.
Buying Electrical Bulb & Socket Parts for a 2021 Honda Civic
On this vehicle, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination.
- Match the engine first. Some electrical bulb & socket parts fit every engine; others are engine-specific. Each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace bulbs in pairs so both sides age together, and put a smear of dielectric grease on the new socket contacts.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Headlamp Bulb and Back Up / Reverse Lamp Bulb .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 2021 Honda Civic?
Our catalog currently lists 83 electrical bulb & socket parts for the 2021 Honda Civic across 14 subcategories and 7 brands, covering all 3 engine options (1.5L L4 Turbocharged, 2.0L L4 and 2.0L L4 Turbocharged). Each part is matched to the engine(s) it fits.
Do electrical bulb & socket parts differ between 2021 Honda Civic engines?
Some do. 74 parts fit every engine; the other 9 are engine-specific. Each row (and the filter at the top) shows which. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of electrical bulb & socket problems on a 2021 Honda Civic?
Common symptoms include a lamp that flickers over bumps, melted or discolored socket plastic, or bulbs that keep failing early on one side. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace bulbs in pairs so both sides age together, and put a smear of dielectric grease on the new socket contacts.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2021 Honda Civic was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2021 Honda Civic?
First match the engine — each row shows which engine(s) the part fits. Then repeated bulb failure in one position usually means a socket or ground problem, not bad bulbs — replace the socket rather than chase it. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 Honda Civic
Electrical Bulb & Socket Parts for Other Honda Civic Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.